A fault diagnosis method, apparatus, gas equipment, and readable storage medium

Abstract

This invention relates to the field of cooking control technology, and discloses a fault diagnosis method, device, gas equipment, and readable storage medium. Applied to gas equipment, the method includes: in response to a triggered ignition operation, acquiring a wind speed signal at the ignition location; when ignition failure is detected, determining whether the wind speed signal is greater than a preset wind speed threshold; if the wind speed signal is greater than the preset wind speed threshold, determining the fault type of the gas equipment as "wind-blown out." This invention, by accurately acquiring the wind speed signal at the ignition location, enables rapid localization of wind-blown faults after ignition failure. It overcomes the limitations of traditional ignition fault diagnosis, which ignores wind speed factors or cannot accurately determine wind-blown out faults. It can clearly identify the root cause of ignition failure due to wind without manual investigation, improving the accuracy and efficiency of wind-blown fault diagnosis. Simultaneously, it reduces the risk of gas leakage caused by repeated ignition due to wind, improving the safety of gas equipment use and user experience.

Description

Technical Field

[0001] This invention relates to the field of cooking control technology, specifically to a fault diagnosis method, device, gas equipment, and readable storage medium. Background Technology

[0002] The ignition control logic of existing gas stoves relies solely on a flame detection device to make a single judgment on the combustion status. When ignition fails, the system only checks whether a flame exists through the flame detection device. If no flame is detected, it directly cuts off the gas supply, but it cannot identify the underlying cause of the ignition failure, leaving users unable to determine the specific root cause of the problem when faced with a fault.

[0003] Due to the lack of an effective fault feedback mechanism, users can only try to ignite the stove repeatedly. This process is not only time-consuming and laborious, which seriously reduces the user experience, but also poses significant safety hazards: when ignition fails multiple times and is not recognized by the system, gas is likely to accumulate inside the stove, and re-ignition can easily cause safety accidents such as deflagration and backfire. Summary of the Invention

[0004] This invention provides a fault diagnosis method, device, gas equipment, and readable storage medium to solve the problem of being unable to diagnose faults after ignition failure.

[0005] In a first aspect, the present invention provides a fault diagnosis method applied to a gas appliance. The method includes: in response to triggering an ignition operation, acquiring a wind speed signal at the ignition position; when ignition failure is detected, determining whether the wind speed signal is greater than a preset wind speed threshold; if the wind speed signal is greater than the preset wind speed threshold, determining that the fault type of the gas appliance is blown out by strong wind; if the wind speed signal is less than or equal to the preset wind speed threshold, detecting a flame signal at the ignition position, and determining the fault type of the gas appliance as insufficient gas pressure or thermocouple failure based on the detection result of the flame signal.

[0006] The fault diagnosis method provided by the present invention determines the fault type of the gas equipment based on the wind speed signal at the ignition position if ignition failure is detected after triggering the ignition operation. Specifically, if the wind speed signal is greater than a preset wind speed threshold, the fault type is determined to be "blown out by strong wind". If the wind speed signal is less than the preset wind speed threshold, the fault type of the gas equipment is determined to be "insufficient gas pressure" or "thermocouple failure" based on the flame signal at the ignition position. This invention enables rapid localization of wind-induced ignition failures by accurately collecting wind speed signals at the ignition location. It overcomes the limitations of traditional ignition fault diagnosis, which often ignores wind speed or fails to accurately determine wind-induced extinguishing faults. The root cause of ignition failure due to strong winds can be identified without manual inspection, improving the accuracy and efficiency of wind-induced fault diagnosis. Simultaneously, it reduces the risk of gas leaks caused by repeated ignition attempts due to strong winds, enhancing the safety and user experience of gas appliances. After ruling out wind-induced extinguishing faults, focusing on the flame signal at the ignition location allows for precise localization of subsequent fault types. No additional detection components are needed; different faults can be distinguished solely by the flame signal detection results, simplifying the diagnostic process and reducing costs. Furthermore, accurate detection of the ignition location avoids misjudgments due to flame detection position deviations, providing users and maintenance personnel with a clear direction for troubleshooting and further improving the fault diagnosis system.

[0007] In one optional embodiment, the gas appliance includes an ignition device. Before determining whether the wind speed signal is greater than a preset wind speed threshold, the method further includes: after triggering the ignition operation, detecting the pulse signal and sound signal of the ignition device; if no pulse signal is detected within a first preset time interval, or if a pulse signal is detected within the first preset time interval and the sound signal is abnormal, then the fault type is determined to be an igniter fault; wherein, abnormal sound signal includes: the number of sound signals within the first preset time interval is less than a preset number threshold, and / or the interval between sound signals is less than a first preset time threshold or greater than a second preset time threshold.

[0008] Before determining a wind-related fault, this invention achieves accurate identification and early troubleshooting of igniter faults through the coordinated determination of ignition device pulse signals and sound signals. By using clear quantitative standards for abnormal sound signals, it avoids confusion between igniter faults and wind-blown-out faults, providing clear guidance for maintenance. At the same time, it allows for early troubleshooting of core igniter faults, reduces ineffective wind speed judgment operations, improves the efficiency of overall ignition fault diagnosis, reduces safety hazards caused by igniter faults, and enhances the accuracy and efficiency of overall fault diagnosis.

[0009] In one optional implementation, the flame signal at the ignition position is detected, and the fault type of the gas equipment is determined to be insufficient gas pressure or thermocouple failure based on the detection result of the flame signal. This includes: if an abnormal flame signal is detected within a second preset time interval, the fault type is determined to be insufficient gas pressure, and the abnormal flame signal includes: an unstable flame signal and / or the amplitude of the flame signal is lower than a preset amplitude; if no flame signal is detected within the second preset time interval, the fault type is determined to be thermocouple failure.

[0010] This invention differentiates between abnormal flame signals and no detected flame signals, accurately identifying two fault types: insufficient gas pressure and thermocouple failure, thus completely avoiding confusion and misjudgment between different faults. Simultaneously, it clarifies the quantitative indicators (amplitude, stability) of abnormal flame signals, providing a unified and executable basis for fault diagnosis. This facilitates the programmable implementation of gas equipment controllers, improving diagnostic efficiency. Furthermore, it accurately identifies faults in thermocouples, a core safety component, promptly reminding users to maintain them and mitigating safety risks such as gas leaks and lack of flame supply caused by thermocouple failure, further enhancing the safety protection level of gas equipment.

[0011] In one optional implementation, the method further includes: if a pulse signal of the ignition device is detected within a first preset time interval and the sound signal of the ignition device is normal, then the ignition action is determined to be normal; otherwise, the ignition is determined to fail. After determining that the ignition action is normal, if a flame signal at the ignition position is detected to be normal within a second preset time interval, then the ignition is determined to be successful; otherwise, the ignition is determined to fail.

[0012] This invention clarifies the criteria for determining normal ignition action and successful ignition, forming a complete logical chain of ignition determination, wind speed determination, and flame determination. This avoids misjudgments of faults caused by ambiguous ignition status determination. At the same time, it clearly defines the boundary between normal ignition action and successful ignition, making the ignition fault diagnosis process more standardized, improving the rigor of the diagnostic logic, providing a reliable premise for subsequent fault type determination, and ensuring the accuracy of the diagnostic results.

[0013] In one optional implementation, the method further includes: generating fault prompt information based on the fault type, the fault prompt information including at least: an audible prompt and a fault code prompt; if ignition failure is determined to have occurred a preset number of times consecutively, then entering maintenance mode.

[0014] This invention provides both audible and fault code alerts, enabling intuitive transmission of fault information and adapting to different visual and auditory perception scenarios. This allows users to quickly identify fault types without professional knowledge. Simultaneously, a maintenance mode is set up to prevent gas accumulation caused by repeated ignition failures, thus avoiding safety accidents such as deflagration and backfire from an operational perspective. This enhances the safety protection capabilities of gas equipment, reduces unnecessary gas consumption, and balances safety and economy.

[0015] Secondly, the present invention provides a fault diagnosis device applied to gas equipment. The device includes: a signal acquisition module for acquiring a wind speed signal at the ignition position in response to a triggered ignition operation; a failure diagnosis module for determining whether the wind speed signal is greater than a preset wind speed threshold when an ignition failure is detected; and a fault diagnosis module for determining the fault type of the gas equipment as "blown out by strong wind" if the wind speed signal is greater than the preset wind speed threshold, and for detecting the flame signal at the ignition position and determining the fault type of the gas equipment as insufficient gas pressure or thermocouple failure based on the detection result of the flame signal if the wind speed signal is less than or equal to the preset wind speed threshold.

[0016] Thirdly, the present invention provides a gas appliance, comprising: a controller and an ignition device, wherein the controller is connected to the ignition device; the controller comprises: a memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the computer instructions to perform the fault diagnosis method of the first aspect or any corresponding embodiment described above.

[0017] In one optional embodiment, the gas appliance further includes: a sound acquisition device, a wind speed acquisition device, a flame acquisition device, a thermocouple, and an operation panel. The controller is connected to the wind speed acquisition device, the flame acquisition device, the sound acquisition device, the thermocouple, and the operation panel. The sound acquisition device and the wind speed acquisition device are integrated on the lower side of the thermocouple. The sound acquisition device is used to acquire the sound signal from the ignition device, and the wind speed acquisition device is used to acquire the wind speed signal at the ignition location. The flame acquisition device is integrated above the thermocouple and is used to acquire the flame signal at the ignition location. The operation panel is used to display fault information for the gas appliance.

[0018] The gas equipment provided by this invention integrates the sound and wind speed acquisition devices on the lower side of the thermocouple through a reasonable component layout, and integrates the flame acquisition device above the thermocouple. This makes full use of the installation space of the thermocouple, enabling a compact layout of the detection components, reducing the occupancy of internal components, simplifying the assembly process, and lowering manufacturing costs. Each acquisition device is close to the ignition position and the flame combustion zone, which can accurately and quickly acquire sound signals, wind speed signals, and flame signals, ensuring the efficient and accurate execution of fault diagnosis methods. The operation panel can intuitively display fault prompts, allowing users to quickly view the fault type and further improving ease of use. At the same time, the efficient linkage between each component and the controller forms a complete fault diagnosis and prompt system, improving the safety and practicality of the equipment.

[0019] In one alternative implementation, the gas appliance is a gas stove.

[0020] The gas stove provided by this invention integrates the above-mentioned fault diagnosis method. By fusing multi-source signals to determine the ignition status, it can overcome the limitations of traditional single flame signal detection. It focuses on common problems in gas stove use, such as wind blowing out the flame and igniter failure. It can accurately locate and intuitively prompt the type of ignition failure, and can identify the root cause of the fault without manual troubleshooting. This improves the accuracy and efficiency of ignition fault diagnosis for gas equipment, while reducing repeated ignition operations caused by unclear faults, reducing the safety risks of gas leakage and deflagration, and improving the safety and user experience of gas equipment.

[0021] Fourthly, the present invention provides a computer-readable storage medium storing computer instructions for causing a computer to perform the fault diagnosis method of the first aspect or any corresponding embodiment thereof. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a gas appliance according to an embodiment of the present invention; Figure 2 This is a schematic flowchart of a first type of fault diagnosis method according to an embodiment of the present invention; Figure 3 This is a schematic diagram of a second type of fault diagnosis method according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the overall process of the fault diagnosis method according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the third process of the fault diagnosis method according to an embodiment of the present invention; Figure 6 This is a schematic diagram of an ignition failure fault indication method according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the device self-test of the fault diagnosis method according to an embodiment of the present invention; Figure 8 This is a structural block diagram of a fault diagnosis device according to an embodiment of the present invention; Figure 9 This is a schematic diagram of the hardware structure of the controller according to an embodiment of the present invention.

[0024] Explanation of reference numerals in the attached figures: 1-Gas equipment; 10-Controller; 20-Ignition device; 30-Sound acquisition device; 40-Wind speed acquisition device; 50-Flame acquisition device; 60-Thermocouple; 70-Control panel. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] It is understood that before using the technical solutions disclosed in the various embodiments of the present invention, users should be informed of the types, scope of use, and usage scenarios of the personal information involved in the present invention and their authorization should be obtained in accordance with relevant laws and regulations through appropriate means.

[0027] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] As an optional application scenario of this invention, such as Figure 1 As shown, the gas appliance 1 provided in this embodiment of the invention includes: a controller 10, an ignition device 20, a sound acquisition device 30, a wind speed acquisition device 40, a flame acquisition device 50, a thermocouple 60, and an operation panel 70. The sound acquisition device 30 and the wind speed acquisition device 40 are integrated on the lower side of the thermocouple 60. The sound acquisition device 30 is used to acquire the sound signal from the ignition device 20, and the wind speed acquisition device 40 is used to acquire the wind speed signal at the ignition location. The flame acquisition device 50 is integrated above the thermocouple 60. The controller 10 is connected to the ignition device 20, the sound acquisition device 30, the wind speed acquisition device 40, the flame acquisition device 50, the thermocouple 60, and the operation panel 70.

[0029] Taking a gas stove as an example, the controller 10 is embedded in the gas stove and serves as the core control unit. It receives ignition operation commands from the user, such as triggering ignition by turning the ignition knob, pressing the ignition button, or touching the control panel 70. Simultaneously, it sends ignition control signals to the ignition device 20 to drive the ignition device 20 to initiate the ignition action. At the same time, the controller 10 receives various data in real time from the sound acquisition device 30, the wind speed acquisition device 40, the flame acquisition device 50, and the thermocouple 60. Specifically, the sound acquisition device 30 collects the sound signal generated when the ignition device 20 ignites and transmits it to the controller 10; the wind speed acquisition device 40 collects the wind speed signal at the ignition position (burner head) of the gas stove and uploads it in real time; the flame acquisition device 50 collects the flame signal at the ignition position of the burner head; and the thermocouple 60 detects the flame combustion status in real time and feeds back relevant signals to the controller 10.

[0030] Based on the above structure of the gas equipment 1, this embodiment of the invention provides a fault diagnosis method, which determines the ignition status and fault type by multi-source signal fusion, so as to accurately locate the ignition failure fault type, reduce repeated ignition operations caused by unknown faults, and improve the safety of gas equipment use and user experience.

[0031] According to an embodiment of the present invention, a fault diagnosis method embodiment is provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0032] This embodiment provides a fault diagnosis method, which can be used for the aforementioned gas equipment 1, such as a gas stove, gas heater, etc. Figure 2 This is a flowchart of a fault diagnosis method according to an embodiment of the present invention, such as... Figure 2 As shown, the process includes the following steps: Step S201: In response to triggering the ignition operation, acquire the wind speed signal at the ignition location.

[0033] Specifically, in this embodiment of the invention, taking a gas stove as an example, an ignition device is installed at the burner ignition position of the gas stove, and a wind speed acquisition device is added on top of this. When the user issues an ignition operation command through the ignition knob, pressing the ignition button, or touching the control panel, the controller receives the ignition operation command and simultaneously sends a control signal to the ignition device to control the ignition device to start the ignition action. At the same time as triggering the ignition operation, the controller sends a data acquisition command to the wind speed acquisition device. This wind speed acquisition device is integrated on the side of the thermocouple and is close to the gas stove burner (ignition position), which can accurately capture the real-time wind speed around the ignition position and avoid wind speed signal distortion caused by the deviation of the acquisition position. After receiving the acquisition command, the wind speed acquisition device quickly starts wind speed detection, performs preliminary filtering on the wind speed signal at the ignition position to remove invalid data caused by environmental interference, and then transmits the processed valid wind speed signal to the controller in real time, providing accurate and reliable data support for the subsequent determination of faults such as ignition failure due to strong wind blowing out the flame.

[0034] Furthermore, while receiving the wind speed signal, the controller continuously controls the ignition device to perform the ignition action, realizing the synchronous execution of wind speed signal acquisition and ignition action, which not only does not affect the ignition response speed, but also ensures the timely acquisition of the data required for fault diagnosis.

[0035] Step S202: When ignition failure is detected, determine whether the wind speed signal is greater than the preset wind speed threshold.

[0036] Specifically, in this embodiment of the invention, during the actual ignition process, if the wind at the ignition location is too strong, it will quickly disperse the spark generated by the ignition device, causing the spark to fail to continuously ignite the gas. Even if brief ignition is achieved, the strong wind will quickly extinguish the flame, ultimately causing ignition failure. It should be clarified that in this situation, the ignition failure is most likely not due to a malfunction in the gas stove itself, but rather due to the environmental factor of external wind. Users do not need to consider repairing the gas stove; they only need to wait for the wind speed at the ignition location to decrease, or take measures to block the strong wind, before attempting to ignite again. Therefore, in this embodiment of the invention, the controller stores a preset wind speed threshold. After detecting ignition failure (no flame signal detected, or an abnormal flame signal), it compares the wind speed signal obtained by the current wind speed acquisition device with the preset wind speed threshold to determine whether the current wind is too strong.

[0037] In some optional implementations, the aforementioned preset wind speed threshold is set based on the premise that the gas stove can ignite normally and burn stably. Multiple tests can be conducted to determine the maximum wind speed value that ensures successful ignition and prevents the flame from being blown away, which serves as the initial baseline threshold. Furthermore, the preset wind speed threshold can be determined by considering the gas stove's daily usage scenarios, such as natural ventilation in the kitchen and airflow interference from the range hood, allowing for a reasonable redundancy beyond the baseline threshold to avoid misjudgments of slight airflow. The threshold can also be further adjusted based on the equipment specifications, such as the spark intensity and gas injection volume of the ignition device. For devices with weak spark intensity and low gas injection volume, the threshold can be appropriately lowered, and vice versa, ensuring the threshold matches the device's performance. After determining the preset wind speed threshold, multiple ignition tests under different wind conditions can be conducted to verify its rationality. If misjudgments occur (e.g., a normal light breeze is judged as strong wind, or strong wind is not recognized), the threshold can be further fine-tuned until it meets the requirement of accurate judgment of strong winds blowing out flames without misjudgments. For example, the preset wind speed threshold is determined to be 0.8 m / s using the above method; this is merely an example and not a limitation.

[0038] Step S203: If the wind speed signal is greater than the preset wind speed threshold, then the fault type of the gas equipment is determined to be "blown out by strong wind".

[0039] Specifically, in this embodiment of the invention, the preset wind speed threshold is a critical value determined through multiple tests and calibrations, taking into account parameters such as the ignition characteristics and flame combustion stability of the gas stove. This threshold precisely corresponds to the maximum wind resistance capability of the gas stove to ignite normally without the flame being blown away, effectively distinguishing between normal light wind environments and strong wind environments. When the wind speed signal exceeds this threshold, strong winds will significantly interfere with the ignition process. On the one hand, it will quickly disperse the spark generated by the ignition device, preventing the spark from continuously contacting and igniting the gas; on the other hand, even if the spark briefly ignites the gas, the strong wind will quickly carry away the flame heat and disperse the burning gas, causing the flame to fail to burn stably and continuously, ultimately resulting in ignition failure. Therefore, if the controller detects that the current wind speed signal is greater than the preset wind speed threshold, it indicates that the current wind speed is too high, and the cause of the current ignition failure can be directly determined as being blown out by strong winds.

[0040] In some optional implementations, embodiments of the present invention can synchronously record the duration for which the wind speed signal is greater than a preset wind speed threshold. If the controller detects that the currently collected real-time wind speed signal is greater than the preset wind speed threshold, and the duration for which this wind speed is greater than the preset wind speed threshold is greater than a preset time threshold, such as 2 seconds, it indicates that the wind speed at the current ignition location is too high, and the continuous strong wind is causing stable interference to the ignition process. In this case, it can be directly determined that the current ignition failure is due to strong wind blowing it out. Therefore, setting a preset time threshold can avoid misjudgment caused by instantaneous strong winds (such as instantaneous airflow disturbances), ensuring that only continuous strong wind interference will be judged as wind blowing it out.

[0041] The fault diagnosis method provided by this invention determines the fault type of the gas equipment based on the wind speed signal at the ignition location if ignition failure is detected after triggering the ignition operation. Specifically, if the wind speed signal is greater than a preset wind speed threshold, the fault type is determined to be "wind-induced extinguishing." This invention, by accurately collecting the wind speed signal at the ignition location, enables rapid localization of wind-induced faults after ignition failure. It overcomes the limitations of traditional ignition fault diagnosis methods that ignore wind speed factors or cannot accurately determine wind-induced extinguishing faults. It can identify the root cause of ignition failure due to strong winds without manual investigation, improving the accuracy and efficiency of wind-induced fault diagnosis. Simultaneously, it reduces the risk of gas leakage caused by repeated ignition due to strong winds, enhancing the safety of gas equipment use and the user experience.

[0042] This embodiment provides a fault diagnosis method that can be used for the aforementioned gas appliances, such as gas stoves and gas water heaters. Figure 3 This is a flowchart of a fault diagnosis method according to an embodiment of the present invention, such as... Figure 3 As shown, the process includes the following steps: Step S301: In response to the triggered ignition operation, acquire the wind speed signal at the ignition location. For details, please refer to [link to relevant documentation]. Figure 2 Step S201 of the illustrated embodiment will not be described again here.

[0043] Step S302: After triggering the ignition operation, the pulse signal and sound signal of the ignition device are detected.

[0044] Specifically, in this embodiment of the invention, the ignition device, as the core ignition execution component of the gas stove, will directly cause the ignition operation to fail, resulting in ineffective gas ignition and ignition failure if the ignition device itself malfunctions. This type of ignition failure is not caused by external environmental factors, but rather by a hardware malfunction of the gas stove itself, which usually requires repair or replacement of components. Therefore, as... Figure 4 As shown, in this embodiment of the invention, before detecting external factors such as ambient wind speed, the fault detection process of the ignition device is initiated first.

[0045] In this embodiment of the invention, the controller simultaneously initiates the acquisition of pulse signals output by the ignition device the instant it receives the ignition operation command and triggers the ignition action, thereby acquiring the pulse signals during the ignition device's operation in real time. This pulse signal is the core characteristic signal of the ignition device generating a high-voltage ignition spark, directly reflecting whether the ignition device has started normally and whether its operating frequency is stable. Simultaneously, the controller controls the sound acquisition device to start synchronously, acquiring the sound signals emitted by the ignition device during the ignition process in real time to determine whether the typical "crackling" sound corresponding to normal ignition exists.

[0046] The sound signal and pulse signal are sequentially correlated and easier to quantize. For each pulse signal output and spark generated by the ignition device, the sound acquisition device simultaneously captures a corresponding ignition sound, maintaining consistency in their time sequence. The sound signal can be quantized using parameters such as the number of sounds, time interval, and signal amplitude, forming a matching correlation with the frequency and amplitude of the pulse signal. This enables dual-source quantitative detection of the ignition device's operating status, improving the accuracy of fault diagnosis.

[0047] Step S303: If no pulse signal is detected within the first preset time interval, or if a pulse signal is detected within the first preset time interval and the sound signal is abnormal, then the fault type is determined to be an igniter fault.

[0048] Specifically, in this embodiment of the invention, after triggering the ignition operation, the controller synchronously and in real-time detects the pulse signal output by the ignition device and the sound signal collected by the sound acquisition device. When the ignition device is working normally, it will output a regular high-voltage pulse ignition signal. If the controller does not collect any pulse signal within the first preset time interval (e.g., 1-3 seconds), it indicates that the ignition device has not started normally, the ignition action is abnormal, and no ignition spark can be generated. At this time, ignition failure can be directly determined, and the fault type can be identified as ignition device failure.

[0049] Furthermore, since sound signals and pulse signals correspond to each other and are quantifiable, hidden faults can be more accurately identified through the quantification characteristics of sound signals, provided that the pulse signal is output normally. For example, although the ignition device outputs a pulse, problems such as wear on the ignition needle, poor contact in the ignition circuit, or abnormal discharge distance can lead to the inability to generate an effective ignition spark, insufficient spark intensity, or disordered ignition rhythm, ultimately resulting in ignition failure. Therefore, if a pulse signal is detected within a first preset time interval (e.g., 1-3 seconds), but the sound signal is abnormal, i.e., the number of sounds is less than a preset threshold (e.g., 5 times), and / or the sound interval is less than a first preset time threshold (e.g., 300ms) or greater than a second preset time threshold (e.g., 1 second), then the fault type is still determined to be an igniter fault. The aforementioned first preset time interval, first preset time threshold, and second preset time threshold are only examples and are not limited thereto.

[0050] If the controller collects a pulse signal within the first preset time interval (e.g., 1-3s) and the number of sound signals reaches the preset number threshold, and the sound interval is between the first preset time threshold and the second preset time threshold, it indicates that the ignition device starts normally and can generate an effective ignition spark. The ignition action is normal, the ignition device is not faulty, and the current wind speed signal can be further detected.

[0051] Step S304: When ignition failure is detected, determine whether the wind speed signal is greater than a preset wind speed threshold. For details, please refer to [link to relevant documentation]. Figure 2 Step S202 of the illustrated embodiment will not be described again here.

[0052] Step S305: If the wind speed signal is greater than the preset wind speed threshold, the fault type of the gas equipment is determined to be "blown out by strong wind". For details, please refer to [link to relevant documentation]. Figure 2 Step S203 of the illustrated embodiment will not be described again here.

[0053] Step S306: If the wind speed signal is less than or equal to the preset wind speed threshold, the flame signal at the ignition position is detected, and the fault type of the gas equipment is determined based on the detection result of the flame signal.

[0054] Specifically, in embodiments of the present invention, such as Figure 4 As shown, when the controller determines that the current ignition failure is not due to an igniter malfunction (ignition action is normal), and based on the ambient wind speed signal at the ignition location being less than or equal to a preset wind speed threshold, it determines that the ignition failure was not caused by strong ambient wind blowing out the flame. At this point, the controller initiates the flame detection process, which involves real-time acquisition and stability assessment of the flame signal at the ignition location using a flame sensor to further determine whether the current ignition was successful. If ignition fails, the controller determines the type of fault causing the failure. It is evident that wind speed signal assessment takes precedence over flame signal assessment. Even if ignition failure is determined based on the flame signal (no flame signal detected, or an abnormal flame signal), if the detected wind speed signal is greater than the preset wind speed threshold, the current fault type is determined to be wind-blown flame.

[0055] In some alternative implementations, step S306 includes: Step a1: If an abnormal flame signal is detected within the second preset time interval, the fault type is determined to be insufficient gas pressure. Abnormal flame signal includes: unstable flame signal and / or flame signal amplitude lower than preset amplitude.

[0056] Step a2: If no flame signal is detected within the second preset time interval, the fault type is determined to be a thermocouple fault.

[0057] Specifically, in this embodiment of the invention, after the ignition operation is triggered, the flame signal at the ignition position is simultaneously acquired and its stability is judged in real time by a flame sensor. If the ignition action is determined to be normal and the flame signal at the ignition position is detected to be normal within a second preset time interval, then the ignition is determined to be successful; otherwise, the ignition is determined to have failed. After ruling out the possibility that the ignition failure was not caused by strong ambient wind blowing out the flame, the flame signal is used to further distinguish whether the ignition failure was caused by abnormal gas supply, abnormal flame detection component, or other combustion-related faults.

[0058] For example, within a second preset time interval (e.g., 3-5 seconds) after the ignition operation is triggered, the controller continuously acquires the flame signal uploaded by the flame sensor, performs stability analysis on the flame signal, and determines whether its fluctuation, continuity, and intensity changes are abnormal. Fluctuation is assessed by monitoring whether the flame shape undergoes periodic, drastic deformation or rapid alternation of brightness within a preset time window; continuity is assessed by monitoring whether the flame experiences unexpected extinguishing and whether this state persists beyond the window duration; intensity changes are detected by detecting changes in flame height, where excessively high or low flames indicate unstable intensity. If an abnormal flame signal is detected within the second preset time interval but does not completely disappear, it indicates that the gas can flow normally but the supply pressure is insufficient, preventing the formation of a stable and continuous ignition flame, thus leading to ignition failure. In this case, the fault type is determined to be insufficient gas pressure.

[0059] Furthermore, if the flame sensor fails to detect any valid flame signal within the second preset time interval, while the ignition device pulse and audible signals are normal, the ambient wind speed is within a reasonable range, and the gas passage is normal, it indicates that the flame detection circuit or thermocouple component is not properly sensing the flame state and cannot provide a valid flame feedback signal to the controller. This causes the system to mistakenly determine that ignition has failed and cut off the gas supply. In this case, the fault type is determined to be a thermocouple fault. As a core component of flameout protection, accurate identification of thermocouple faults can promptly remind users to maintain the device, avoiding safety risks such as gas leaks and lack of flame supply caused by thermocouple failure, and further improving the safety protection level of gas equipment.

[0060] This invention, through graded detection and logical judgment of flame signals, can accurately distinguish between two typical fault types—insufficient gas pressure and thermocouple failure—after excluding igniter malfunctions and wind field interference. This enables layer-by-layer location and accurate determination of the cause of ignition failure, improving the completeness and reliability of fault diagnosis.

[0061] The fault diagnosis method provided by this invention determines the fault type of the gas equipment based on the wind speed signal at the ignition location if ignition failure is detected after triggering the ignition operation. Specifically, if the wind speed signal is greater than a preset wind speed threshold, the fault type is determined to be "wind-induced extinguishing." This invention, by accurately collecting the wind speed signal at the ignition location, enables rapid localization of wind-induced faults after ignition failure. It overcomes the limitations of traditional ignition fault diagnosis methods that ignore wind speed factors or cannot accurately determine wind-induced extinguishing faults. It can identify the root cause of ignition failure due to strong winds without manual investigation, improving the accuracy and efficiency of wind-induced fault diagnosis. Simultaneously, it reduces the risk of gas leakage caused by repeated ignition due to strong winds, enhancing the safety of gas equipment use and the user experience.

[0062] This embodiment provides a fault diagnosis method that can be used for the aforementioned gas appliances, such as gas stoves and gas water heaters. Figure 5 This is a flowchart of a fault diagnosis method according to an embodiment of the present invention, such as... Figure 5 As shown, the process includes the following steps: Step S501: In response to the triggered ignition operation, acquire the wind speed signal at the ignition location. For details, please refer to [link to relevant documentation]. Figure 3 Step S301 of the illustrated embodiment will not be described again here.

[0063] Step S502: After triggering the ignition operation, the pulse signal and audible signal of the ignition device are detected. For details, please refer to [link to relevant documentation]. Figure 3 Step S302 of the illustrated embodiment will not be described again here.

[0064] Step S503: If no pulse signal is detected within the first preset time interval, or if a pulse signal is detected within the first preset time interval but the sound signal is abnormal, then the fault type is determined to be an igniter fault. For details, please refer to [link to relevant documentation]. Figure 3 Step S303 of the illustrated embodiment will not be described again here.

[0065] Step S504: When ignition failure is detected, determine whether the wind speed signal is greater than a preset wind speed threshold. For details, please refer to [link to relevant documentation]. Figure 3 Step S304 of the illustrated embodiment will not be described again here.

[0066] Step S505: If the wind speed signal is greater than the preset wind speed threshold, the fault type of the gas equipment is determined to be "blown out by strong wind". For details, please refer to [link to relevant documentation]. Figure 3 Step S305 of the illustrated embodiment will not be described again here.

[0067] Step S506: If the wind speed signal is less than or equal to a preset wind speed threshold, the flame signal at the ignition position is detected, and the fault type of the gas equipment is determined based on the detection result of the flame signal. For details, please refer to [link to relevant documentation]. Figure 3 Step S306 of the illustrated embodiment will not be described again here.

[0068] Step S507: Generate fault prompt information according to the fault type. The fault prompt information shall include at least: sound prompt and fault code prompt.

[0069] Specifically, in this embodiment of the invention, after detecting ignition failure and accurately determining the type of gas equipment malfunction, the controller generates corresponding fault prompt information for different fault types. This provides visual and auditory reminders of the fault status, facilitating quick perception of the fault and identification of its cause by users or maintenance personnel. In this embodiment, the fault prompt information includes both audible and fault code prompts, which can be output collaboratively. The audible prompts use differentiated audio signals, while the fault code prompts are unique numerical or alphanumeric codes. Each fault code corresponds to a preset fault type, and a mapping table between fault codes and fault types is established and stored in the controller's storage module.

[0070] For example, the fault types in the embodiments of the present invention include four categories: "igniter failure", "blowing out by strong wind", "insufficient gas pressure", and "thermocouple failure". Figure 6 As shown, the audible prompts use different durations and frequencies of "beep" sounds to distinguish between different ignition failures and fault codes. The fault codes are continuously displayed on a bright LED digital tube. The two are output synchronously and in a one-to-one correspondence, as follows: ① Ignition failure: The buzzer emits a short "beep," and the digital tube displays fault code F01; ② Extinguishing the gas due to strong winds: The buzzer emits a long "beep," and the digital tube displays fault code F02; ③ Insufficient gas pressure: The buzzer emits two short "beeps," and the digital tube displays fault code F03; ④ Thermocouple failure: The buzzer emits two long "beeps," and the digital tube displays fault code F04. These are just examples and are not exhaustive.

[0071] The combination of fault codes and audible prompts is concise, clear, and easy to distinguish. The digital display uses a high-brightness LED design, ensuring clear visibility even in low-light conditions. Fault codes and audible prompts will continue to be output until ignition is successful, the user manually resets the device, or the device enters maintenance mode, ensuring users can obtain fault information promptly and accurately. Users can directly look up the meaning of faults using the fault code reference table posted on the stove panel, eliminating the need to memorize complex codes and significantly improving ease of use and maintenance. Simultaneously, fault code prompts are displayed intuitively on the gas stove's control panel and triggered synchronously with audible prompts, ensuring effective transmission of fault information in various usage scenarios (such as when the user is in a silent state or their view is obstructed).

[0072] Furthermore, the fault prompt information may also include text prompts or icon prompts. Text prompts directly display the fault type name, such as "igniter fault" or "insufficient gas pressure". Icon prompts use preset fault icons, such as a flame cross icon or a fan speed too high icon, to intuitively present the fault category, further improving the intuitiveness and ease of understanding of the fault prompts.

[0073] Step S508: If ignition fails for a preset number of consecutive times, enter maintenance mode.

[0074] Specifically, in this embodiment of the invention, to avoid repeated ignition attempts by the user leading to gas accumulation, component wear, or safety risks, the controller will count the number of ignition failures in real time if an ignition failure is detected. When an ignition failure is determined to have occurred after a preset number of consecutive attempts (e.g., 3 times), the controller automatically enters maintenance mode to ensure the safe use of the equipment.

[0075] Furthermore, when entering maintenance mode, the display module will prompt the user with "FAUSE" to inform them that the device has entered a protection state. In maintenance mode, the gas stove is prohibited from performing any ignition actions, will no longer respond to ignition operations, and will not attempt to ignite again until the user manually resets the device, such as by pressing and holding both ignition buttons for 3 seconds. This effectively prevents accidental operation and repeated malfunctions, further enhancing the safety of the device. Simultaneously, the gas stove will automatically record the fault code and timestamp of each consecutive ignition failure and store them in the fault history. Users can clear the history using the reset button on the stove panel, allowing them to determine whether the device needs maintenance based on the fault records, providing data for after-sales service and troubleshooting. In maintenance mode, the corresponding fault code and audible prompts will continue to be displayed until the user manually resets the device; the gas valve remains closed, locking the gas passage and preventing gas leaks at the source.

[0076] In some optional implementations, to further improve the reliability of gas stove operation and ignition safety, the embodiments of the present invention automatically execute the self-test program of each acquisition device before triggering the ignition operation, that is, to perform pre-test on the working status and signal channel of the sound acquisition device, wind speed acquisition device, and flame acquisition device, so as to avoid ignition judgment errors or safety risks due to abnormal acquisition devices.

[0077] Specifically, the controller sequentially checks whether each data acquisition device responds normally, outputs valid data, and transmits normal signals through the signal channel. If any data acquisition device malfunctions, the system immediately stops the ignition process, outputs a corresponding self-test fault message, and prohibits ignition operations to prevent the equipment from attempting ignition under abnormal conditions, thus reducing safety hazards at the source.

[0078] Furthermore, such as Figure 7 As shown, the self-test fault prompts also use a combination of fault codes and audible prompts: if the audible acquisition device is malfunctioning, an FF01 error will be displayed; if the wind speed detection module is malfunctioning, an FF02 error will be displayed; if the flame signal channel is malfunctioning, an FF03 error will be displayed. These are just examples and are not exhaustive. The self-test fault codes will continue to be displayed until the module returns to normal or the user completes the equipment reset, ensuring that the fault status can be identified and handled in a timely manner.

[0079] This invention utilizes a pre-ignition sensor self-check to proactively assess the operational status of signal acquisition components, ensuring accurate ignition fault diagnosis from the data acquisition source and preventing signal distortion and misjudgment due to malfunctions in the acquisition device. Simultaneously, upon detecting an anomaly, ignition is immediately prohibited, and a unique anomaly code is generated to promptly remind the user to maintain the acquisition components, preventing ignition under signal acquisition failure conditions and mitigating safety risks at the source. The unique anomaly code also allows maintenance personnel to quickly locate faults in the acquisition components, improving maintenance efficiency. This multi-layered safety protection system, encompassing pre-ignition self-checks and fault maintenance, prevents gas safety accidents while balancing intelligence, safety, and practicality.

[0080] In summary, in the embodiments of the present invention, various faults and corresponding prompts are shown in the following table:

[0081] The fault diagnosis method provided by this invention determines the fault type of the gas equipment based on the wind speed signal at the ignition location if ignition failure is detected after triggering the ignition operation. Specifically, if the wind speed signal is greater than a preset wind speed threshold, the fault type is determined to be "wind-induced extinguishing." This invention, by accurately collecting the wind speed signal at the ignition location, enables rapid localization of wind-induced faults after ignition failure. It overcomes the limitations of traditional ignition fault diagnosis methods that ignore wind speed factors or cannot accurately determine wind-induced extinguishing faults. It can identify the root cause of ignition failure due to strong winds without manual investigation, improving the accuracy and efficiency of wind-induced fault diagnosis. Simultaneously, it reduces the risk of gas leakage caused by repeated ignition due to strong winds, enhancing the safety of gas equipment use and the user experience.

[0082] This embodiment also provides a fault diagnosis device for implementing the above embodiments and preferred embodiments; details already described will not be repeated. As used below, the term "module" can refer to a combination of software and / or hardware that performs a predetermined function. Although the device described in the following embodiments is preferably implemented in software, hardware implementation, or a combination of software and hardware, is also possible and contemplated.

[0083] This embodiment provides a fault diagnosis device, such as Figure 8 As shown, it includes: The signal acquisition module 801 is used to acquire the wind speed signal at the ignition position in response to the triggered ignition operation.

[0084] The failure diagnosis module 802 is used to determine whether the wind speed signal is greater than a preset wind speed threshold when an ignition failure is detected.

[0085] The fault diagnosis module 803 is used to determine the fault type of the gas equipment as "blown out by strong wind" if the wind speed signal is greater than the preset wind speed threshold.

[0086] In some alternative embodiments, the apparatus further includes: The first ignition diagnostic module is used to detect the pulse signal and sound signal of the ignition device after the ignition operation is triggered.

[0087] The igniter fault diagnosis module is used to determine the fault type as igniter fault if no pulse signal is detected within a first preset time interval, or if a pulse signal is detected within the first preset time interval and the sound signal is abnormal; wherein, abnormal sound signal includes: the number of sound signals within the first preset time interval is less than a preset number threshold, and / or the interval between sound signals is less than a first preset time threshold or greater than a second preset time threshold.

[0088] In some optional embodiments, the device further includes a flame diagnostic module, used to detect the flame signal at the ignition position if the wind speed signal is less than or equal to a preset wind speed threshold, and to determine the fault type of the gas equipment based on the detection result of the flame signal.

[0089] In some alternative implementations, the flame diagnostic module includes: The gas pressure deficiency diagnosis unit is used to determine the fault type as gas pressure deficiency if an abnormal flame signal is detected within a second preset time interval. The abnormal flame signal includes: unstable flame signal and / or flame signal amplitude lower than a preset amplitude.

[0090] Thermocouple fault diagnosis unit is used to determine the fault type as thermocouple fault if no flame signal is detected within a second preset time interval.

[0091] In some alternative embodiments, the apparatus further includes: The second ignition diagnostic module is used to determine that the ignition action is normal if a pulse signal of the ignition device is detected within the first preset time interval and the sound signal of the ignition device is normal; otherwise, it is determined that the ignition has failed.

[0092] The third ignition diagnostic module is used to determine that ignition is successful if the flame signal at the ignition position is detected to be normal within a second preset time interval after the ignition action is determined to be normal; otherwise, it is determined that ignition has failed.

[0093] In some alternative embodiments, the apparatus further includes: The fault indication module is used to generate fault indication information based on the fault type. The fault indication information includes at least: sound prompts and fault code prompts.

[0094] The fault maintenance module is used to enter maintenance mode if ignition fails for a preset number of consecutive times.

[0095] The fault diagnosis device provided in this embodiment of the invention can execute the fault diagnosis method provided in any embodiment of the invention, and has the corresponding functional modules and beneficial effects for executing the method. Further functional descriptions of the various modules and units described above are the same as those in the corresponding embodiments described above, and will not be repeated here.

[0096] Figure 9 This is a schematic diagram of the structure of a controller provided in an embodiment of the present invention.

[0097] The following is a detailed reference. Figure 9 The diagram illustrates a structural schematic suitable for implementing a controller in an embodiment of the present invention. The controller may include a processor (e.g., a central processing unit, graphics processing unit, etc.) 901, which can perform various appropriate actions and processes according to a program stored in read-only memory (ROM) 902 or a program loaded from memory 908 into random access memory (RAM) 903. The RAM 903 also stores various programs and data required for controller operation. The processor 901, ROM 902, and RAM 903 are interconnected via a bus 904. An input / output (I / O) interface 905 is also connected to the bus 904.

[0098] Typically, the following devices can be connected to I / O interface 905: input devices 906 including, for example, touchscreens, touchpads, keyboards, mice, cameras, microphones, accelerometers, gyroscopes, etc.; output devices 907 including, for example, liquid crystal displays (LCDs), speakers, vibrators, etc.; memory devices 908 including, for example, magnetic tapes, hard disks, etc.; and communication devices 909. Communication device 909 allows the controller to communicate wirelessly or wiredly with other devices to exchange data. Although Figure 9 A controller with various devices is shown, but it should be understood that it is not required to implement or have all of the devices shown, and may alternatively implement or have more or fewer devices.

[0099] In particular, according to embodiments of the present invention, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of the present invention include a computer program product comprising a computer program carried on a non-transitory computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via a communication device 909, or installed from a memory 908, or installed from a ROM 902. When the computer program is executed by the processor 901, it performs the functions defined in the fault diagnosis method of the embodiments of the present invention.

[0100] Figure 9 The controller shown is merely an example and should not be construed as limiting the functionality and scope of use of the embodiments of the present invention.

[0101] This invention also provides a computer-readable storage medium. The methods described above according to embodiments of the invention can be implemented in hardware or firmware, or implemented as computer code that can be recorded on a storage medium, or implemented as computer code downloaded via a network and originally stored on a remote storage medium or a non-transitory machine-readable storage medium and then stored on a local storage medium. Thus, the methods described herein can be processed by software stored on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. The storage medium can be a magnetic disk, optical disk, read-only memory, random access memory, flash memory, hard disk, or solid-state drive, etc.; further, the storage medium can also include combinations of the above types of memory. It is understood that computers, processors, microprocessor controllers, or programmable hardware include storage components capable of storing or receiving software or computer code. When the software or computer code is accessed and executed by the computer, processor, or hardware, the fault diagnosis method shown in the above embodiments is implemented.

[0102] A portion of this invention can be applied as a computer program product, such as computer program instructions, which, when executed by a computer, can invoke or provide the methods and / or technical solutions according to the invention through the operation of the computer. Those skilled in the art will understand that the forms in which computer program instructions exist in a computer-readable medium include, but are not limited to, source files, executable files, installation package files, etc. Correspondingly, the ways in which computer program instructions are executed by a computer include, but are not limited to: the computer directly executing the instructions, or the computer compiling the instructions and then executing the corresponding compiled program, or the computer reading and executing the instructions, or the computer reading and installing the instructions and then executing the corresponding installed program. Here, the computer-readable medium can be any available computer-readable storage medium or communication medium accessible to a computer.

[0103] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A fault diagnosis method applied to gas equipment, characterized in that, The method includes: In response to the triggering of the ignition operation, the wind speed signal at the ignition location is acquired; When ignition failure is detected, it is determined whether the wind speed signal is greater than a preset wind speed threshold. If the wind speed signal is greater than the preset wind speed threshold, the fault type of the gas equipment is determined to be blown out by strong wind; if the wind speed signal is less than or equal to the preset wind speed threshold, the flame signal at the ignition position is detected, and the fault type of the gas equipment is determined to be insufficient gas pressure or thermocouple failure based on the detection result of the flame signal.

2. The method according to claim 1, characterized in that, The gas equipment includes an ignition device, and before determining whether the wind speed signal is greater than a preset wind speed threshold, the method further includes: After the ignition operation is triggered, the pulse signal and sound signal of the ignition device are detected; If the pulse signal is not detected within the first preset time interval, or if the pulse signal is detected within the first preset time interval and the sound signal is abnormal, then the fault type is determined to be an igniter fault. The abnormality of the sound signal includes: the number of sound signals within the first preset time interval is less than a preset number threshold, and / or the interval between the sound signals is less than a first preset time threshold or greater than a second preset time threshold.

3. The method according to claim 1, characterized in that, The step of detecting the flame signal at the ignition position and determining the fault type of the gas equipment as insufficient gas pressure or thermocouple failure based on the detection result of the flame signal includes: If an abnormal flame signal is detected within the second preset time interval, the fault type is determined to be insufficient gas pressure. The abnormal flame signal includes: unstable flame signal and / or the amplitude of the flame signal is lower than a preset amplitude. If the flame signal is not detected within the second preset time interval, the fault type is determined to be a thermocouple fault.

4. The method according to claim 2 or 3, characterized in that, The method further includes: If a pulse signal from the ignition device is detected within the first preset time interval and the ignition device’s sound signal is normal, then the ignition action is determined to be normal; otherwise, the ignition is determined to have failed. After determining that the ignition action is normal, if the flame signal at the ignition position is detected to be normal within the second preset time interval, the ignition is determined to be successful; otherwise, the ignition is determined to be unsuccessful.

5. The method according to any one of claims 1 to 3, characterized in that, The method further includes: Based on the fault type, a fault prompt message is generated, which includes at least: an audio prompt and a fault code prompt; If ignition fails for a preset number of consecutive times, the system will enter maintenance mode.

6. A fault diagnosis device, applied to gas equipment, characterized in that, The device includes: The signal acquisition module is used to acquire the wind speed signal at the ignition position in response to the triggering of the ignition operation; The failure diagnosis module is used to determine whether the wind speed signal is greater than a preset wind speed threshold when an ignition failure is detected. The fault diagnosis module is used to determine the fault type of the gas equipment as "blown out by strong wind" if the wind speed signal is greater than the preset wind speed threshold; and to detect the flame signal at the ignition position if the wind speed signal is less than or equal to the preset wind speed threshold, and to determine the fault type of the gas equipment as insufficient gas pressure or thermocouple failure based on the detection result of the flame signal.

7. A gas-fired device, characterized in that, include: A controller and an ignition device, wherein the controller is connected to the ignition device; The controller includes a memory and a processor, which are communicatively connected to each other. The memory stores computer instructions, and the processor executes the computer instructions to perform the fault diagnosis method according to any one of claims 1 to 5.

8. The gas equipment according to claim 7, characterized in that, The gas equipment further includes: a sound acquisition device, a wind speed acquisition device, a flame acquisition device, a thermocouple, and an operation panel; the controller is connected to the wind speed acquisition device, the flame acquisition device, the sound acquisition device, the thermocouple, and the operation panel. The sound acquisition device and the wind speed acquisition device are integrated on the lower side of the thermocouple. The sound acquisition device is used to acquire the sound signal of the ignition device, and the wind speed acquisition device is used to acquire the wind speed signal at the ignition position. The flame acquisition device is integrated above the thermocouple and is used to acquire the flame signal at the ignition position. The control panel is used to display fault information for the gas equipment.

9. The gas equipment according to claim 8, characterized in that, The gas appliance is a gas stove.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions for causing the computer to perform the fault diagnosis method according to any one of claims 1 to 5.

Images